公开(公告)号：US20130176866A1

公开(公告)日：2013-07-11

申请号：US13344441

申请日：2012-01-05

Applicant: Ming Yang ,  Tom Chin ,  Qingxin Chen ,  Guangming Shi

Inventor： Ming Yang ,  Tom Chin ,  Qingxin Chen ,  Guangming Shi

IPC: H04W24/00 ,  H04W36/00

CPC classification number: H04W56/0045 ,  H04W36/0079 ,  H04W36/08 ,  H04W56/0005

Abstract: A method of wireless communication includes measuring and recording a path loss of a first downlink signal from a source base station, prior to attempting handoff from the source base station to a target base station. The path loss of a second downlink signal from the source base station is measured after unsuccessful handoff from the source base station to the target base station. A UE communicates with the source base station, after unsuccessful handoff, using an uplink timing corresponding to an uplink timing recorded prior to attempting handoff when a difference between the path loss of the first downlink signal and the path loss of the second downlink signal fails to meet a threshold value. A new uplink timing is used when the difference meets the threshold value.

Abstract translation: 一种无线通信方法包括在尝试从源基站到目标基站的切换之前测量并记录来自源基站的第一下行链路信号的路径损耗。 在从源基站到目标基站的切换不成功之后，测量来自源基站的第二下行链路信号的路径损耗。 在第一下行链路信号的路径损耗与第二下行链路信号的路径损耗之间的差异不成立时，UE在切换不成功之后，使用对应于在尝试切换之前记录的上行链路定时的上行链路定时，与源基站通信， 满足阈值。 当差值满足阈值时，使用新的上行链路定时。

公开(公告)号：US20130028081A1

公开(公告)日：2013-01-31

申请号：US13359167

申请日：2012-01-26

Applicant: Ming Yang ,  Tom Chin ,  Qingxin Chen ,  Guangming Shi

Inventor： Ming Yang ,  Tom Chin ,  Qingxin Chen ,  Guangming Shi

IPC: H04W28/08 ,  H04W36/22 ,  H04W48/20

CPC classification number: H04W48/20 ,  H04W36/30

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided in connection with providing a process for balancing loads and reducing call blocking in a TD-SCDMA network. In one example, a user equipment (UE) is equipped to obtain a received signal code power (RSCP) value and a load factor value for each of one or more cells. The UE may be further equipped to rank the one or more cells based on a cell selection value derived from both the RSCP value and the load factor value and select a serving cell from the ranked one or more cells.

Abstract translation: 提供一种用于无线通信的方法，装置和计算机程序产品，用于提供用于平衡负载并减少TD-SCDMA网络中的呼叫阻塞的过程。 在一个示例中，用户设备（UE）被配备为获得一个或多个小区中的每一个的接收信号码功率（RSCP）值和负载因子值。 UE可以进一步配备为基于从RSCP值和负载因子值两者导出的小区选择值对一个或多个小区进行排序，并从排序的一个或多个小区中选择服务小区。

公开(公告)号：US20120314589A1

公开(公告)日：2012-12-13

申请号：US13157188

申请日：2011-06-09

Applicant: Qingxin Chen ,  Aamod Dinkar Khandekar ,  Srikanth Gummadi ,  Shan Qing

Inventor： Qingxin Chen ,  Aamod Dinkar Khandekar ,  Srikanth Gummadi ,  Shan Qing

IPC: H04W24/00 ,  H04B17/00

CPC classification number: H04W24/10 ,  H04W88/06

Abstract: Methods and apparatus are provided for operating in a first RAN at a working frequency, determining a priority of measurement tasks enabled by the first RAN, and dynamically scheduling the tasks according to the priority. For certain aspects, the first RAN may be a TD-SCDMA network. The measurement tasks are intended to measure at least one parameter of a serving cell in the first RAN on a primary frequency, at least one cell in the first RAN on at least one frequency other than the primary frequency, one or more cells in at least one RAN other than the first RAN (e.g., a GSM network) or any combination thereof. This dynamic assignment allows the UE to make scheduling decisions on which frequencies and RANs to measure, as well as how often these frequencies and RANs are measured, thereby providing for more efficient use of idle slots over conventional haphazard scheduling.

Abstract translation: 提供了以工作频率在第一RAN中操作的方法和装置，确定由第一RAN启用的测量任务的优先级，并根据优先级动态地调度任务。 对于某些方面，第一RAN可以是TD-SCDMA网络。 测量任务旨在测量主频率上的第一RAN中的服务小区的至少一个参数，在主频率以外的至少一个频率上的第一RAN中的至少一个小区，至少至少一个或多个小区 除了第一RAN之外的一个RAN（例如，GSM网络）或其任何组合。 该动态分配允许UE对要测量的哪些频率和RAN进行调度决定，以及测量这些频率和RAN的频率，从而提供比常规随机调度更有效地利用空闲时隙。

公开(公告)号：US20100311420A1

公开(公告)日：2010-12-09

申请号：US12479217

申请日：2009-06-05

Applicant: Ashrafur Md. Reza ,  Qingxin Chen ,  Reza Shahidi ,  Rajeev S. Kurundkar

Inventor： Ashrafur Md. Reza ,  Qingxin Chen ,  Reza Shahidi ,  Rajeev S. Kurundkar

IPC: H04W36/00

CPC classification number: H04W36/0005

Abstract: A method and apparatus for facilitating handoff operations in a wireless communication device is provided. The method may comprise receiving, by a wireless communication device, a plurality of pilot signals, wherein the plurality of pilot signals includes an active pilot signal and one or more candidate pilot signals, selecting at least one nominal active pilot signal strength value for comparison with the active pilot signal, classifying the one or more candidate pilot signals into a respective one of a plurality of tiers based on a handoff factor corresponding to the at least one candidate pilot signal, wherein the plurality of tiers are divided according to one or more handoff factors, and selecting at least one threshold handoff value for each of the plurality of tiers, wherein the at least one threshold handoff value partly depends on one of the at least one nominal active pilot signal strength values.

Abstract translation: 提供一种用于促进无线通信设备中的切换操作的方法和装置。 所述方法可包括由无线通信设备接收多个导频信号，其中所述多个导频信号包括有源导频信号和一个或多个候选导频信号，选择至少一个标称有源导频信号强度值以与 所述有源导频信号基于与所述至少一个候选导频信号相对应的切换因子将所述一个或多个候选导频信号分类成多个层中的相应一个，其中，所述多个层根据一个或多个切换被划分 因素，并且为多个层级中的每一层选择至少一个阈值切换值，其中所述至少一个阈值切换值部分地取决于所述至少一个标称有效导频信号强度值之一。

公开(公告)号：US20060022391A1

公开(公告)日：2006-02-02

申请号：US11191715

申请日：2005-07-28

Applicant: Qingxin Chen

Inventor： Qingxin Chen

IPC: F16F1/12

CPC classification number: F16F3/00 ,  F16F2230/0052

Abstract: An engine suspension cushion assembly that provides longer life, better dynamics perfomances, and easier manufacture process than existing suspension cushion assembly is provided. The invention is an assembly comprising several suspension cushion members, several baffles, one upper base plate, one lower base plate and several clamp platens. The suspension cushion members are mounted between the upper base plate and the lower base plate; one end of each spring clamp platen is attached to the base plates, the other end connects the bottom of the spring. The baffles are mounted on the four sides of the upper base plate and the lower base plate, each side has two baffles, and the total is eight.

Abstract translation: 提供了一种发动机悬架垫组件，其提供比现有的悬挂垫组件更长的寿命，更好的动态性能和更容易的制造过程。 本发明是一种组件，其包括多个悬挂缓冲构件，多个挡板，一个上基板，一个下基板和多个夹紧压板。 悬架缓冲构件安装在上基板和下基板之间; 每个弹簧夹板的一端连接到基板，另一端连接弹簧的底部。 挡板安装在上基板和下基板的四侧，每侧有两个挡板，总共八个。

公开(公告)号：US09467941B2

公开(公告)日：2016-10-11

申请号：US13491386

申请日：2012-06-07

Applicant: Shiau-He Tsai ,  Insung Kang ,  Qingxin Chen

Inventor： Shiau-He Tsai ,  Insung Kang ,  Qingxin Chen

IPC: H04W52/00 ,  H04W52/02 ,  H04W52/34 ,  H04W52/36

CPC classification number: H04W52/0216 ,  H04W52/346 ,  H04W52/367 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/1246 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164

Abstract: When a user equipment (UE) is communicating wirelessly over a wireless communication network and terminates wireless communication temporarily due to power limit constraints (such as to satisfy a specific absorption rate (SAR) threshold), the UE may maintain its radio access network (RAN) identification (ID) and domain context, in order to quickly resume wireless communication, and avoid upper layer connection setup, once the UE is no longer power limited.

Abstract translation: 当用户设备（UE）通过无线通信网络进行无线通信并由于功率限制约束（例如满足特定吸收率（SAR）阈值）而暂时终止无线通信时，UE可以维护其无线接入网络 ）识别（ID）和域上下文，以便快速恢复无线通信，并避免上层连接建立，一旦UE不再受功率限制。

公开(公告)号：US08873435B2

公开(公告)日：2014-10-28

申请号：US13364652

申请日：2012-02-02

Applicant: Ming Yang ,  Tom Chin ,  Qingxin Chen ,  Guangming Shi

Inventor： Ming Yang ,  Tom Chin ,  Qingxin Chen ,  Guangming Shi

IPC: H04J3/00

CPC classification number: H04W72/082 ,  H04W74/08

Abstract: In TDD-LTE wireless systems, an additional fourth preamble for the random access channel, called short RACH, may be used. If short RACH signaling is to be used, the random access preamble is transmitted in the uplink pilot time slot (UpPTS) field in the special subframe. The location of the uplink pilot time slot (UpPTS) is next to a downlink subframe. Therefore, interference from neighbor base stations may interfere with the short RACH preamble within the uplink pilot time slot. The interference to the short RACH will prevent the eNodeB from detecting the short RACH preamble and thus prevent the UE from accessing the network. An interference level on an Uplink Pilot Time Slot (UpPTS) may be measured and when the interference level exceeds a threshold value a User Equipment (UE) is instructed to disable short Random Access Channel (RACH) signaling. The UE may then be instructed to enable normal RACH. When the interference level falls below the threshold value the UE is instructed to resume short RACH signaling.

Abstract translation: 在TDD-LTE无线系统中，可以使用称为短RACH的随机接入信道的另外的第四前同步码。 如果要使用短的RACH信令，则在特殊子帧中的上行链路导频时隙（UpPTS）字段中发送随机接入前导码。 上行链路导频时隙（UpPTS）的位置在下行子帧的旁边。 因此，来自相邻基站的干扰可能干扰上行链路导频时隙内的短RACH前导码。 对短RACH的干扰将阻止eNodeB检测短RACH前同步码，从而防止UE接入网络。 可以测量上行链路导频时隙（UpPTS）上的干扰电平，并且当干扰电平超过阈值时，指示用户设备（UE）禁用短随机接入信道（RACH）信令。 然后可以指示UE启用正常的RACH。 当干扰电平低于阈值时，UE被指示恢复短的RACH信令。

公开(公告)号：US08472967B2

公开(公告)日：2013-06-25

申请号：US12362435

申请日：2009-01-29

Applicant: Donna Ghosh ,  Qingxin Chen ,  Christopher Gerard Lott ,  Jun Hu ,  Rashid Ahmed Akbar Attar ,  Kang Wang

Inventor： Donna Ghosh ,  Qingxin Chen ,  Christopher Gerard Lott ,  Jun Hu ,  Rashid Ahmed Akbar Attar ,  Kang Wang

IPC: H04W72/00 ,  H04B7/00

CPC classification number: H04W52/24 ,  H04W52/34

Abstract: Allocating transmit power among two or more carriers assigned to a wireless communication device is disclosed. In one aspect, a method of allocating transmit power includes determining a total amount of data transmit power available at the wireless communication device for data transmission over the carriers. An efficiency metric is determined for each carrier based on the carrier's transmission characteristics and a portion of the total data transmit power is allocated to each carrier based on each carrier's efficiency metric.

Abstract translation: 公开了分配给无线通信设备的两个或多个载波之间的分配发射功率。 在一个方面，一种分配发射功率的方法包括确定在无线通信设备处可用的数据传输功率的总量，用于通过载波进行数据传输。 基于载波的传输特性为每个载波确定效率度量，并且基于每个载波的效率度量将总数据发射功率的一部分分配给每个载波。

公开(公告)号：US20120014258A1

公开(公告)日：2012-01-19

申请号：US13172584

申请日：2011-06-29

Applicant: Tom Chin ,  Kuo-Chun Lee ,  Shan Qing ,  Qingxin Chen

Inventor： Tom Chin ,  Kuo-Chun Lee ,  Shan Qing ,  Qingxin Chen

IPC: H04W24/00

CPC classification number: H04W56/00 ,  H04W24/10 ,  H04W88/06

Abstract: Certain aspects of the present disclosure relate to a technique for effective measurement in a second Radio Access Technology (e.g., TD-SCDMA) while receiving service in a first Radio Access Technology (e.g., GSM).

Abstract translation: 本公开的某些方面涉及在第一无线电接入技术（例如，GSM）中接收服务时在第二无线电接入技术（例如，TD-SCDMA）中有效测量的技术。

公开(公告)号：US07437172B2

公开(公告)日：2008-10-14

申请号：US10316760

申请日：2002-12-10

Applicant: Qingxin Chen ,  Shimman Patel

Inventor： Qingxin Chen ,  Shimman Patel

IPC: H04B7/00

CPC classification number: H04L1/0061 ,  H04L1/0072 ,  H04L1/20 ,  H04L1/201

Abstract: Techniques to detect for DTX frames in a “primary” transmission that may be sent in a non-continuous manner using a “secondary” transmission that is sent during periods of no transmission for the primary transmission. The primary and secondary transmissions may be the ones sent on the F-DCCH and Forward Power Control Subchannel, respectively, in an IS-2000 system. In one method, a determination is first made whether or not a frame received for the primary transmission in a particular frame interval is a good frame (e.g., based on CRC). If the received frame is not a good frame, then a determination is next made whether the received frame is a DTX frame or an erased frame based on a number of metrics determined for the primary and secondary transmissions. The metrics may include symbol error rate of the received frame, secondary transmission (e.g., PC bit) energy, and received frame energy.

Abstract translation: 在“主”传输中检测可以以非连续方式发送的DTX帧的技术，使用在主传输的无传输期间发送的“次”传输。 主要和次要传输可以分别是在IS-2000系统中在F-DCCH和前向功率控制子信道上发送的。 在一种方法中，首先确定在特定帧间隔中为主传输接收的帧是否是良好帧（例如，基于CRC）。 如果接收到的帧不是良好的帧，则接着确定接收到的帧是否是基于针对主传输和次传输确定的度量的数目的DTX帧或已擦除的帧。 度量可以包括接收到的帧的符号错误率，二次传输（例如，PC位）能量和接收到的帧能量。